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     "text": [
      "3.5.1\n"
     ]
    }
   ],
   "source": [
    "# matplotlib\n",
    "# \n",
    "'''\n",
    "Matplotlib 是 Python 的绘图库，它能让使用者很轻松地将数据图形化，并且提供多样化的输出格式。\n",
    "Matplotlib 可以用来绘制各种静态，动态，交互式的图表。\n",
    "Matplotlib 是一个非常强大的 Python 画图工具，我们可以使用该工具将很多数据通过图表的形式更直观的呈现出来。\n",
    "Matplotlib 可以绘制线图、散点图、等高线图、条形图、柱状图、3D 图形、甚至是图形动画等等。\n",
    "\n",
    "Matplotlib 应用\n",
    "Matplotlib 通常与 NumPy 和 SciPy(Scientific Python) 一起使用， 这种组合广泛用于替代 MatLab, 是一个强大的科学计算环境，\n",
    "有助于我们通过 Python 学习数据科学或者机器学习。\n",
    "'''\n",
    "import matplotlib\n",
    "\n",
    "print(matplotlib.__version__)\n"
   ]
  }
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